Nuklear/src/nuklear_table.c

91 lines
2.4 KiB
C

#include "nuklear.h"
#include "nuklear_internal.h"
/* ===============================================================
*
* TABLE
*
* ===============================================================*/
NK_LIB struct nk_table*
nk_create_table(struct nk_context *ctx)
{
struct nk_page_element *elem;
elem = nk_create_page_element(ctx);
if (!elem) return 0;
nk_zero_struct(*elem);
return &elem->data.tbl;
}
NK_LIB void
nk_free_table(struct nk_context *ctx, struct nk_table *tbl)
{
union nk_page_data *pd = NK_CONTAINER_OF(tbl, union nk_page_data, tbl);
struct nk_page_element *pe = NK_CONTAINER_OF(pd, struct nk_page_element, data);
nk_free_page_element(ctx, pe);
}
NK_LIB void
nk_push_table(struct nk_window *win, struct nk_table *tbl)
{
if (!win->tables) {
win->tables = tbl;
tbl->next = 0;
tbl->prev = 0;
tbl->size = 0;
win->table_count = 1;
return;
}
win->tables->prev = tbl;
tbl->next = win->tables;
tbl->prev = 0;
tbl->size = 0;
win->tables = tbl;
win->table_count++;
}
NK_LIB void
nk_remove_table(struct nk_window *win, struct nk_table *tbl)
{
if (win->tables == tbl)
win->tables = tbl->next;
if (tbl->next)
tbl->next->prev = tbl->prev;
if (tbl->prev)
tbl->prev->next = tbl->next;
tbl->next = 0;
tbl->prev = 0;
}
NK_LIB nk_uint*
nk_add_value(struct nk_context *ctx, struct nk_window *win,
nk_hash name, nk_uint value)
{
NK_ASSERT(ctx);
NK_ASSERT(win);
if (!win || !ctx) return 0;
if (!win->tables || win->tables->size >= NK_VALUE_PAGE_CAPACITY) {
struct nk_table *tbl = nk_create_table(ctx);
NK_ASSERT(tbl);
if (!tbl) return 0;
nk_push_table(win, tbl);
}
win->tables->seq = win->seq;
win->tables->keys[win->tables->size] = name;
win->tables->values[win->tables->size] = value;
return &win->tables->values[win->tables->size++];
}
NK_LIB nk_uint*
nk_find_value(struct nk_window *win, nk_hash name)
{
struct nk_table *iter = win->tables;
while (iter) {
unsigned int i = 0;
unsigned int size = iter->size;
for (i = 0; i < size; ++i) {
if (iter->keys[i] == name) {
iter->seq = win->seq;
return &iter->values[i];
}
} size = NK_VALUE_PAGE_CAPACITY;
iter = iter->next;
}
return 0;
}